Home / 221,199,128.64-331,798,858.20-75,633,788.88

Finding the Fourth Proportional to 221,199,128.64, 331,798,858.20 and 75,633,788.88

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Solution

The fourth proportional to 221,199,128.64, 331,798,858.20 and 75,633,788.88 is: 113,450,739.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,199,128.64 : 331,798,858.20 = 75,633,788.88 : x
  2. Step 2: Convert to fraction form
    221,199,128.64/331,798,858.20 = 75,633,788.88/x
  3. Step 3: Cross multiply
    221,199,128.64x = 331,798,858.20 × 75,633,788.88
  4. Step 4: Simplify right side
    221,199,128.64x = 25,095,204,791,723,856
  5. Step 5: Solve for x
    x = 25,095,204,791,723,856/221,199,128.64
  6. Step 6: Final answer
    x = 113,450,739.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.